#include "ISBN\SBN.h"
#include <iostream>
using namespace std;
#pragma once
class Order: public ISBN{
      int ordered,delivered; 
      public:
             Order();
             Order(const ISBN& isbn, int o, int d);
             Order(const Order& obj);
             void style(char c);
             int has(const ISBN& isbn) const;
             int onOrder() const;
             virtual void toStr(char* str) const;
             virtual int sizeOfStr() const;
             virtual int augment(istream& is);
             int augment(int add);
             int receive(istream& is);
             virtual void display(ostream& os) const;
             friend ostream& operator<<(ostream& os, const Order& order);
};
             
